diff options
Diffstat (limited to 'src/T2DLL/Wave.cpp')
| -rw-r--r-- | src/T2DLL/Wave.cpp | 217 |
1 files changed, 206 insertions, 11 deletions
diff --git a/src/T2DLL/Wave.cpp b/src/T2DLL/Wave.cpp index 021583b..5523057 100644 --- a/src/T2DLL/Wave.cpp +++ b/src/T2DLL/Wave.cpp @@ -1,34 +1,229 @@ +//----------------------------------------------------------------- +// Wave Object +// C++ Source - Wave.cpp +//----------------------------------------------------------------- + +//----------------------------------------------------------------- +// Inclusions +//----------------------------------------------------------------- +#include "common.h" +#include "GlobalFunc.h" +//----------------------------------------------------------------- #include "Wave.h" +#include "MMIO.h" + +//----------------------------------------------------------------- +// MFC Debugging Support +//----------------------------------------------------------------- +#ifdef _DEBUG +#undef THIS_FILE +static char THIS_FILE[]=__FILE__; +#define new DEBUG_NEW +#endif -CWave::CWave() { + +//----------------------------------------------------------------- +// CWave Public Constructor(s)/Destructor +//----------------------------------------------------------------- +CWave::CWave() : m_dwImageLen(0), m_bResource(FALSE), + m_pImageData(NULL) +{ } -CWave::CWave(const CString&) { +CWave::CWave(const CString &str) : m_dwImageLen(0), + m_bResource(FALSE), m_pImageData(NULL) +{ + Create(str); } -CWave::CWave(unsigned int, HINSTANCE) { +CWave::CWave(UINT uiResID, HMODULE hmod) : m_dwImageLen(0), + m_bResource(TRUE), m_pImageData(NULL) +{ + Create(uiResID, hmod); } -/*virtual*/ CWave::~CWave() { +CWave::~CWave() { + // Free the wave image data + Free(); } -int CWave::Create(const CString&) { +//----------------------------------------------------------------- +// CWave Public Methods +//----------------------------------------------------------------- +BOOL CWave::Create(const CString &str) +{ + // Free any previous wave image data + Free(); + + // Flag as regular memory + m_bResource = FALSE; + + // Open the wave file + CFile file; + if (!file.Open(str, CFile::modeRead)) + return FALSE; + + // Get the file length + m_dwImageLen = file.GetLength(); + + // Allocate and lock memory for the image data + m_pImageData = (BYTE*)GlobalLock(GlobalAlloc(GMEM_MOVEABLE | + GMEM_SHARE, m_dwImageLen)); + if (!m_pImageData) + return FALSE; + + // Read the image data from the file + file.Read(m_pImageData, m_dwImageLen); + + return TRUE; } -int CWave::Create(unsigned int, HINSTANCE) { +BOOL CWave::Create(UINT uiResID, HMODULE hmod) +{ + // Free any previous wave image data + Free(); + + // Flag as resource memory + m_bResource = TRUE; + + // Find the wave resource + HRSRC hresInfo; + hresInfo = FindResource(hmod, MAKEINTRESOURCE(uiResID), + "WAVE"); + if (!hresInfo) { + CString idStr; + idStr.Format("%d", uiResID); + + CString error = "CWave::Create ERROR : " + idStr + " " + GetModuleName(hmod) + "\n"; + OutputDebugString(error); + _ASSERT(0); + } + + // Load the wave resource + HGLOBAL hgmemWave = LoadResource(hmod, hresInfo); + + if (hgmemWave) + { + // Get pointer to and length of the wave image data + m_pImageData= (BYTE*)LockResource(hgmemWave); + m_dwImageLen = SizeofResource(hmod, hresInfo); + } + + return (m_pImageData ? TRUE : FALSE); } -int CWave::Play(int, int) const { +BOOL CWave::Play(BOOL bAsync, BOOL bLooped) const +{ + // Check validity + if (!IsValid()) + return FALSE; + + // Play the wave + return PlaySound((LPCSTR)m_pImageData, NULL, SND_MEMORY | + SND_NODEFAULT | (bAsync ? SND_ASYNC : SND_SYNC) | + (bLooped ? (SND_LOOP | SND_ASYNC) : 0)); } -int CWave::GetFormat(WAVEFORMATEX&) const { +BOOL CWave::GetFormat(WAVEFORMATEX& wfFormat) const +{ + // Check validity + if (!IsValid()) + return FALSE; + + // Setup and open the MMINFO structure + CMMMemoryIOInfo mmioInfo((HPSTR)m_pImageData, m_dwImageLen); + CMMIO mmio(mmioInfo); + + // Find the WAVE chunk + CMMTypeChunk mmckParent('W','A','V','E'); + mmio.Descend(mmckParent, MMIO_FINDRIFF); + + // Find and read the format subchunk + CMMIdChunk mmckSubchunk('f','m','t',' '); + mmio.Descend(mmckSubchunk, mmckParent, MMIO_FINDCHUNK); + mmio.Read((HPSTR)&wfFormat, sizeof(WAVEFORMATEX)); + mmio.Ascend(mmckSubchunk); + + return TRUE; } -unsigned long CWave::GetDataLen() const { +DWORD CWave::GetDataLen() const +{ + // Check validity + if (!IsValid()) + return (DWORD)0; + + // Setup and open the MMINFO structure + CMMMemoryIOInfo mmioInfo((HPSTR)m_pImageData, m_dwImageLen); + CMMIO mmio(mmioInfo); + + // Find the WAVE chunk + CMMTypeChunk mmckParent('W','A','V','E'); + mmio.Descend(mmckParent, MMIO_FINDRIFF); + + // Find and get the size of the data subchunk + CMMIdChunk mmckSubchunk('d','a','t','a'); + mmio.Descend(mmckSubchunk, mmckParent, MMIO_FINDCHUNK); + return mmckSubchunk.cksize; } -unsigned long CWave::GetData(unsigned char*&, unsigned long) const { +DWORD CWave::GetData(BYTE*& pWaveData, DWORD dwMaxLen) const +{ + // Check validity + if (!IsValid()) + return (DWORD)0; + + // Setup and open the MMINFO structure + CMMMemoryIOInfo mmioInfo((HPSTR)m_pImageData, m_dwImageLen); + CMMIO mmio(mmioInfo); + + // Find the WAVE chunk + CMMTypeChunk mmckParent('W','A','V','E'); + mmio.Descend(mmckParent, MMIO_FINDRIFF); + + // Find and get the size of the data subchunk + CMMIdChunk mmckSubchunk('d','a','t','a'); + mmio.Descend(mmckSubchunk, mmckParent, MMIO_FINDCHUNK); + DWORD dwLenToCopy = mmckSubchunk.cksize; + + // Allocate memory if the passed in pWaveData was NULL + if (pWaveData == NULL) + pWaveData = (BYTE*)GlobalLock(GlobalAlloc(GMEM_MOVEABLE, + dwLenToCopy)); + else + // If we didn't allocate our own memory, honor dwMaxLen + if (dwMaxLen < dwLenToCopy) + dwLenToCopy = dwMaxLen; + if (pWaveData) + // Read waveform data into the buffer + mmio.Read((HPSTR)pWaveData, dwLenToCopy); + + return dwLenToCopy; } -int CWave::Free() { +//----------------------------------------------------------------- +// CWave Protected Methods +//----------------------------------------------------------------- +BOOL CWave::Free() +{ + // Free any previous wave data + if (m_pImageData) { + HGLOBAL hgmemWave = GlobalHandle(m_pImageData); + + if (hgmemWave) { + if (m_bResource) + // Free resource + FreeResource(hgmemWave); + else { + // Unlock and free memory + GlobalUnlock(hgmemWave); + GlobalFree(hgmemWave); + } + + m_pImageData = NULL; + m_dwImageLen = 0; + return TRUE; + } + } + return FALSE; } |